add exttrail 和add rmttail总结

总结：
1.使用PUMP--数据泵时：
exttrail建立的trail文件是本地的，是给extract进程使用，将捕获的日志数据写入到trail文件中。
DataPump进程需要在参数文件中指定本地建立的exttrail文件，然后从这个文件中读取日志数据。
然后还要在目标端建立一个rmtrail文件，这个文件是DataPump进程通过网络写入到目标数据库。
目标数据库Replicat进程就去读rmttail指定过来的trail文件，然后应用到数据库中。

2.不使用PUMP--数据泵时：

add exttrail 和add rmttail的效果是一样的，建立的trail都是在远程的目标端的。

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实验：不使用PUMP时add exttrail 和add rmttail的效果是一样的

1.源库的配置：  --检查发现 add exttrail /u01/ogg/dirdat/test/et, extract ext6  所指定的文件并没有在本地创建。

GGSCI (bys001.oel.com) 7> add extract ext6,tranlog, begin now
EXTRACT added.

GGSCI (bys001.oel.com) 8> exit
[oracle@bys001 ogg]$ ls dirdat/   
at000000  at000001  bt000000  rep2_discard.txt
[oracle@bys001 ogg]$ date
Sat Aug 31 19:17:53 CST 2013
[oracle@bys001 ogg]$ ./ggsci                        
GGSCI (bys001.oel.com) 1> add exttrail /u01/ogg/dirdat/test/et, extract ext6
EXTTRAIL added.

GGSCI (bys001.oel.com) 2> edit params ext6
extract ext6
userid ogg, password ogg
rmthost 192.168.1.213, mgrport 7809
rmttrail /u01/ogg/dirdat/test/et
table test6.test6;
~                                                                                                           
GGSCI (bys001.oel.com) 5> start ext6
Sending START request to MANAGER ...
EXTRACT EXT6 starting
GGSCI (bys001.oel.com) 6> info all
Program     Status      Group       Lag at Chkpt  Time Since Chkpt
MANAGER     RUNNING                                          
EXTRACT     ABENDED     EXT1        00:00:00      45:22:13   
EXTRACT     ABENDED     EXT3        00:00:00      45:20:12   
EXTRACT     RUNNING     EXT6        00:00:00      00:01:57   
EXTRACT     ABENDED     EXTMYSQL    00:00:00      07:18:42   
EXTRACT     ABENDED     EXTORA      00:00:00      07:18:41   
EXTRACT     ABENDED     PUMP3       00:00:00      45:22:15   
REPLICAT    ABENDED     REP2        00:00:00      45:20:15   

GGSCI (bys001.oel.com) 8> exit
[oracle@bys001 ogg]$ date                        
Sat Aug 31 19:19:41 CST 2013
[oracle@bys001 ogg]$ ls dirdat/       ---源库中未创建相应文档。                  
at000000  at000001  bt000000  rep2_discard.txt

2.目标库配置：

逐次输入以下命令：
dblogin userid ogg,password ogg
add checkpointtable ogg.checkpoint          --这里如果是初次增加可以执行。已经使用过此语句增加表再执行会报错。
add replicat rep6,exttrail /u01/ogg/dirdat/test/et, checkpointtable ogg.checkpoint
edit params rep6
在弹出编辑窗口输入以下：
replicat rep6
handlecollisions
assumetargetdefs
userid ogg,password ogg
discardfile /u01/ogg/dirdat/rep6_discard.txt,append, megabytes 10
map test6.test6, target test6.test6;
启动此进程。

双方进程都启动后，在目标库可以看到源库中add exttrail /u01/ogg/dirdat/test/et, extract ext6指定的文件还是创建在了目标库上。--进程启动后创建
[oracle @bys2 ogg]$ ls -al  dirdat/test/
total 16
drwxr-xr-x 2 oracle oinstall 4096 Aug 31 19:19 .
drwxrwxr-x 3 oracle oinstall 4096 Aug 31 19:09 ..
-rw-rw-rw- 1 oracle oinstall 1276 Aug 31 19:19 et000000
-rw-rw-rw- 1 oracle oinstall 1520 Aug 31 19:20 et000001
##########################

3.测试数据同步是可以的

[oracle@bys001 ogg]$ sqlplus test6/test6            
TEST6@bys1>set time on
19:20:44 TEST6@bys1>insert into test6 values(123);
1 row created.
19:20:49 TEST6@bys1>commit;
Commit complete.
19:20:53 TEST6@bys1>
#######################
目标库查询
[oracle@bys2 ogg]$ sqlplus test6/test6     
TEST6@bys2>select * from test6;

        AA
----------
       123
       811
       888

4.源库OGG日志：

从使用add exttrail /u01/ogg/dirdat/test/et, extract ext6语句开始

2013-08-31 19:17:13  INFO    OGG-00987  Oracle GoldenGate Command Interpreter for Oracle:  GGSCI command (oracle): delete extract ext6.
2013-08-31 19:17:28  INFO    OGG-00987  Oracle GoldenGate Command Interpreter for Oracle:  GGSCI command (oracle): add extract ext6 tranlog, begin now.
2013-08-31 19:18:00  INFO    OGG-00987  Oracle GoldenGate Command Interpreter for Oracle:  GGSCI command (oracle): add exttrail /u01/ogg/dirdat/test/et  extract ext6.
2013-08-31 19:18:09  INFO    OGG-00987  Oracle GoldenGate Command Interpreter for Oracle:  GGSCI command (oracle): edit params ext6.
2013-08-31 19:19:19  INFO    OGG-00987  Oracle GoldenGate Command Interpreter for Oracle:  GGSCI command (oracle): start ex.
2013-08-31 19:19:23  INFO    OGG-00987  Oracle GoldenGate Command Interpreter for Oracle:  GGSCI command (oracle): start ext6.
###############################
2013-08-31 19:19:23  INFO    OGG-00963  Oracle GoldenGate Manager for Oracle, mgr.prm: Command received from GGSCI on host bys001.oel.com (START EXTRACT EXT6 ).
2013-08-31 19:19:23  INFO    OGG-00975  Oracle GoldenGate Manager for Oracle, mgr.prm:  EXTRACT EXT6 starting.
2013-08-31 19:19:23  INFO    OGG-00992  Oracle GoldenGate Capture for Oracle, ext6.prm:  EXTRACT EXT6 starting.
2013-08-31 19:19:23  INFO    OGG-03035  Oracle GoldenGate Capture for Oracle, ext6.prm:  Operating system character set identified as UTF-8. Locale: en_US, LC_ALL:.
2013-08-31 19:19:24  INFO    OGG-03500  Oracle GoldenGate Capture for Oracle, ext6.prm:  WARNING: NLS_LANG environment variable does not match database character set, or not set. Using database character set value of AL32UTF8.
2013-08-31 19:19:24  INFO    OGG-01635  Oracle GoldenGate Capture for Oracle, ext6.prm:  BOUNDED RECOVERY: reset to initial or altered checkpoint.
2013-08-31 19:19:24  INFO    OGG-01815  Oracle GoldenGate Capture for Oracle, ext6.prm:  Virtual Memory Facilities for: BR
    anon alloc: mmap(MAP_ANON)  anon free: munmap
    file alloc: mmap(MAP_SHARED)  file free: munmap
    target directories:
    /u01/ogg/BR/EXT6.
2013-08-31 19:19:24  INFO    OGG-01815  Oracle GoldenGate Capture for Oracle, ext6.prm:  Virtual Memory Facilities for: COM
    anon alloc: mmap(MAP_ANON)  anon free: munmap
    file alloc: mmap(MAP_SHARED)  file free: munmap
    target directories:
    /u01/ogg/dirtmp.
2013-08-31 19:19:25  INFO    OGG-01515  Oracle GoldenGate Capture for Oracle, ext6.prm:  Positioning to begin time Aug 31, 2013 7:17:28 PM.
2013-08-31 19:19:25  INFO    OGG-01516  Oracle GoldenGate Capture for Oracle, ext6.prm:  Positioned to Sequence 38, RBA 4098048, SCN 0.0, Aug 31, 2013 7:17:28 PM.
2013-08-31 19:19:25  INFO    OGG-00993  Oracle GoldenGate Capture for Oracle, ext6.prm:  EXTRACT EXT6 started.
2013-08-31 19:19:30  INFO    OGG-01226  Oracle GoldenGate Capture for Oracle, ext6.prm:  Socket buffer size set to 27985 (flush size 27985).
2013-08-31 19:19:30  INFO    OGG-01056  Oracle GoldenGate Capture for Oracle, ext6.prm:   Recovery initialization completed for target file /u01/ogg/dirdat/test/et000000, at RBA 1276, CSN 1532424.
2013-08-31 19:19:30  INFO    OGG-01478  Oracle GoldenGate Capture for Oracle, ext6.prm:  Output file /u01/ogg/dirdat/test/et is using format RELEASE 11.2.
2013-08-31 19:19:30  WARNING OGG-01438  Oracle GoldenGate Capture for Oracle, ext6.prm:  Checkpoint marked as from graceful shutdown, but records found after checkpoint in trail /u01/ogg/dirdat/test/et.  Expected EOF Seqno 0, RBA 0.  Found Seqno 0, RBA 1276.
2013-08-31 19:19:30  INFO    OGG-01026  Oracle GoldenGate Capture for Oracle, ext6.prm:   Rolling over remote file /u01/ogg/dirdat/test/et000001.
2013-08-31 19:19:30  INFO    OGG-01517  Oracle GoldenGate Capture for Oracle, ext6.prm:  Position of first record processed Sequence 38, RBA 4098064, SCN 0.1532477, Aug 31, 2013 7:17:39 PM.
2013-08-31 19:20:54  INFO    OGG-01054  Oracle GoldenGate Capture for Oracle, ext6.prm:  Recovery completed for target file /u01/ogg/dirdat/test/et000001, at RBA 1396, CSN 1532424.
2013-08-31 19:20:54  INFO    OGG-01057  Oracle GoldenGate Capture for Oracle, ext6.prm:  Recovery completed for all targets.

5.目标库OGG日志：

2013-08-31 19:16:20  INFO    OGG-01670  Oracle GoldenGate Collector for Oracle:  Closing /u01/ogg/dirdat/test/et000000.
2013-08-31 19:16:20  INFO    OGG-01675  Oracle GoldenGate Collector for Oracle:  Terminating because extract is stopped.
#############################
2013-08-31 19:19:10  INFO    OGG-00963  Oracle GoldenGate Manager for Oracle, mgr.prm :  Command received from EXTRACT on host bys001.oel.com (START SERVER CPU -1 PRI -1  TIMEOUT 300 PARAMS ).
2013-08-31 19:19:10  INFO    OGG-01677  Oracle GoldenGate Collector for Oracle:  Waiting for connection (started dynamically).
2013-08-31 19:19:10  INFO    OGG-00963  Oracle GoldenGate Manager for Oracle, mgr.prm:  Command received from SERVER on host localhost.localdomain (REPORT 16782 7819).
2013-08-31 19:19:10  INFO    OGG-00974  Oracle GoldenGate Manager for Oracle, mgr.prm:  Manager started collector process (Port 7819).
2013-08-31 19:19:10  INFO    OGG-01228  Oracle GoldenGate Collector for Oracle:  Timeout in 300 seconds.
2013-08-31 19:19:15  INFO    OGG-01229  Oracle GoldenGate Collector for Oracle:   Connected to bys001.oel.com:20294.
2013-08-31 19:19:15  INFO    OGG-01669  Oracle GoldenGate Collector for Oracle:  Opening /u01/ogg/dirdat/test/et000000 (byte -1, current EOF 1276).
2013-08-31 19:19:15  INFO    OGG-01670  Oracle GoldenGate Collector for Oracle:  Closing /u01/ogg/dirdat/test/et000000.
2013-08-31 19:19:15  INFO    OGG-01669  Oracle GoldenGate Collector for Oracle:   Opening /u01/ogg/dirdat/test/et000000 (byte 1276, current EOF 1276).
2013-08-31 19:19:15  INFO    OGG-01735  Oracle GoldenGate Collector for Oracle:  Synchronizing /u01/ogg/dirdat/test/et000000 to disk.
2013-08-31 19:19:15  INFO    OGG-01735  Oracle GoldenGate Collector for Oracle:  Synchronizing /u01/ogg/dirdat/test/et000000 to disk.
2013-08-31 19:19:15  INFO    OGG-01670  Oracle GoldenGate Collector for Oracle:  Closing /u01/ogg/dirdat/test/et000000.
2013-08-31 19:19:15  INFO    OGG-01669  Oracle GoldenGate Collector for Oracle:   Opening /u01/ogg/dirdat/test/et000001 (byte -1, current EOF 0).
2013-08-31 19:19:15  INFO    OGG-01020  Oracle GoldenGate Delivery for Oracle, rep6.prm:  Processed extract process RESTART_ABEND record at seq 1, rba 1337 (aborted 0 records).